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Definition of steroid noun from the Oxford Advanced Learner's Dictionary

steroid

noun
 
/ˈsterɔɪd/,
 
/ˈstɪərɔɪd/
 
/ˈsterɔɪd/,
 
/ˈstɪrɔɪd/
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  1. a chemical substance produced naturally in the body. There are several different steroids and they can be used to treat various diseases and are also sometimes used illegally by people playing sports to improve their performance.
    Oxford Collocations DictionarySteroid is used before these nouns:
    • cream
    Steroid is used after these nouns:
    • designer
    See full entry
    Word Origin1930s: from sterol + -oid.
See steroid in the Oxford Advanced American DictionarySee steroid in the Oxford Learner's Dictionary of Academic English

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